To understand refrigerant stacking and carryover you must first be familiar with the cooling cycle for water-cooled chillers.The Cooling CycleTo begin chillers circulate chilled water in a closed loop system from the evaporator to air-handlers Learn more

With an estimated 65% of industrial electrical energy used by electric motors it is no wonder that major users in industry increasingly see energy reduction as a key to improving their profitability and competitiveness Because variable-speed Learn more

Controls are turning into commodities according to some industry experts The key difference is in how control intelligence is tuned to specific end user needs As Geoff Walker director of automation and drives at Schneider Electric puts it "We're Learn more

Achieving excellence is only the beginning -- our next challenge is to sustain superiority When your products are well known in a wide range of markets and carry a high-quality label maintaining that reputation and staying ahead of the Learn more

The trend toward healthier foods has led to explosive growth for companies that produce wholesome packaged goods Along with universal agreement that life-threatening obesity is on the rise has come overwhelming demand for snacks and desserts that Learn more

Inverter technology is the key to cost-effective and efficient motor drives The problem however is its high cost As a solution Fairchild has developed a broad range of SPM™ (Smart Power Modules) tailored to variable speed drives SPM series Learn more

As recently as a few decades ago manufacturers assumed that energy costs were simply an uncontrollable cost But such attitudes became outdated with the advent of variable speed drives and power-monitoring technologies capable of making energy a Learn more

Heavy-duty single-axis PRO-6 provides precise proportional control for ac/dc variable-speed drives Joystick has smooth field-adjustable friction brake with positive center detent for applications where speed must remain constant under continuous Learn more

Ratio:Matic Series uses 2 FMI independently adjustable pump heads direct coupled to variable-speed drives Single rotating and reciprocating ceramic piston accomplishes both pumping and valving functions without valves Pump-head size combinations Learn more

ABB Review Special Report 2004 covers the market-leading technologies from its motors and drives business ABB's motor and drive product range is used in major industries from power generation to household appliances windmills to cruise ships Learn more